Recherche avancée

Sur d’autres sites (8267)

• FFMPEG Process not ending when encoding libx264

  17 janvier 2015, par Jamie Hartnoll

  Well, I’m very new and inexperienced with using Process and using FFMPEG, and command line processes in ASP.NET in general... but, have something working, nearly !

  I’m trying to convert AVI files to MP4 files which can be streamed to an HTML5 player.

  After a lot of messing around, I have found that for this to work it has to be encoded with X264, but, for some reason, when I do this the FFMPEG process does not close/end.

  The code I am using is below and works perfectly if I use -vcodec mpeg4, but when I use -vcodec libx264, whilst it works and produces the file I need to Process never ends.

  To get round this, I am temporarily adding 5 second time out to WaitForExit in the Process, but this is definitely a hack and whilst is OK with what I am doing at the moment is not a robust solution.

  Can anyone point me in the direction of why this is happening ?!

  Public Shared Sub AviToMP4(VideoFileName As String, Optional DeleteSource As Boolean = True)
  
  
  
      Dim SourceFile As String = VideoFileName.Replace(".avi", "")
  
      Dim DestinationFile As String = SourceFile
  
  
  
      Dim FFMPEG_EXE_PATH As String = """" & System.AppDomain.CurrentDomain.BaseDirectory() & "ffMPEG.exe"""
  
      Dim Codec = "libx264" ' libx264 || mpeg4
  
      Dim cdml = " -i """ & SourceFile & ".avi"" -acodec aac -strict -2 -b:a 128k -vcodec " & Codec & " -b:v 1200k -flags +aic+mv4 """ & DestinationFile & ".mp4"""
  
  
  
      Dim ProcessorLocation As String = FFMPEG_EXE_PATH
  
      Dim CommandLines As String = cdml
  
  
  
      Try
  
          Dim ProcessingResponse As String = ""
  
          Using myProcess As New Process()
  
              myProcess.StartInfo.UseShellExecute = False
  
              myProcess.StartInfo.RedirectStandardInput = True
  
              myProcess.StartInfo.RedirectStandardOutput = True
  
              myProcess.StartInfo.RedirectStandardError = True
  
              myProcess.StartInfo.CreateNoWindow = True
  
              myProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
  
              myProcess.StartInfo.FileName = ProcessorLocation
  
              myProcess.StartInfo.Arguments = CommandLines
  
              myProcess.Start()
  
              ProcessingResponse = myProcess.StandardError.ReadToEnd()
  
              myProcess.WaitForExit(5000) ' <<< Have to put a timeout here for libx264 or it will never end!!
  
          End Using
  
          HttpContext.Current.Response.Write("<pre>" &amp; ProcessingResponse &amp; "</pre><hr />")
  
          If File.Exists(SourceFile) AndAlso DeleteSource Then
  
              File.Delete(SourceFile)
  
          End If
  
      Catch ex As Exception
  
          HttpContext.Current.Response.Write(ex.ToString &amp; "<p>")
  
      End Try
  
  
  
  End Sub
  
  </p>

• Using video from raw folder in ffmpeg

  5 août 2018, par varmashrivastava

  How can i use video from raw folder of android studio as an input source in ffmpeg command ?Like in below command i want to use from raw folder video as an input-

   { "-y", "-i", input,"-ss", "5000", "-t", "10000", "-c","copy", output};

• Change the framerate of a video including audio without re-encoding using ffmpeg

  12 août 2018, par Trojaner_

  I have a 30.02 FPS .mp4-video and I’m trying to convert it to 30 FPS. I found this question but if I try the method like described in the first answer the audio gets lost because the video is getting converted in a .h264-file which can’t contain audio as I read here.

  (I’m sorry if i’ve got issues with the english language, it isn’t my mother language)

  EDIT : Here goes the content I enter in the terminal and the output that returns

  Input : ffmpeg -y -i 01.mp4 -f h264 -c copy temp1.h264

  Output : (I replaced the real paths with path\to\...)

  ffmpeg version N-91589-ge0539f0349 Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 8.2.1 (GCC) 20180808
  
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
  libavutil      56. 18.102 / 56. 18.102
  
  libavcodec     58. 22.101 / 58. 22.101
  
  libavformat    58. 17.101 / 58. 17.101
  
  libavdevice    58.  4.101 / 58.  4.101
  
  libavfilter     7. 26.100 /  7. 26.100
  
  libswscale      5.  2.100 /  5.  2.100
  
  libswresample   3.  2.100 /  3.  2.100
  
  libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'path\to\01.mp4':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf58.17.101
  
  Duration: 00:02:42.01, start: 0.000000, bitrate: 5168 kb/s
  
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 5000 kb/s, 30.02 fps, 30 tbr, 16k tbn, 60 tbc (default)
  
  Metadata:
  
  handler_name    : VideoHandler
  
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 159 kb/s (default)
  
  Metadata:
  
  handler_name    : SoundHandler
  
  Output #0, h264, to 'path\to\temp1.h264':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf58.17.101
  
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, q=2-31, 5000 kb/s, 30.02 fps, 30 tbr, 30 tbn, 30 tbc (default)
  
  Metadata:
  
  handler_name    : VideoHandler
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  frame= 4862 fps=0.0 q=-1.0 Lsize=   98859kB time=00:02:42.00 bitrate=4999.1kbits/s speed= 351x
  
  video:98860kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

  Input : ffmpeg -y -r 30 -i "temp1.h264" -c copy "temp1.mp4"

  Output : (I replaced the real paths with path\to\...)

  ffmpeg version N-91589-ge0539f0349 Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 8.2.1 (GCC) 20180808
  
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
  libavutil      56. 18.102 / 56. 18.102
  
  libavcodec     58. 22.101 / 58. 22.101
  
  libavformat    58. 17.101 / 58. 17.101
  
  libavdevice    58.  4.101 / 58.  4.101
  
  libavfilter     7. 26.100 /  7. 26.100
  
  libswscale      5.  2.100 /  5.  2.100
  
  libswresample   3.  2.100 /  3.  2.100
  
  libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, h264, from 'path\to\temp1.h264':
  
  Duration: N/A, bitrate: N/A
  
  Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720, 30 fps, 30 tbr, 1200k tbn, 60 tbc
  
  Output #0, mp4, to 'path\to\temp1.mp4':
  
  Metadata:
  
  encoder         : Lavf58.17.101
  
  Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1280x720, q=2-31, 30 fps, 30 tbr, 15360 tbn, 30 tbc
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 0000018e11422ec0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  
  [mp4 @ 0000018e11422ec0] pts has no value
  
  Last message repeated 156 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:05.13 bitrate=5719.5kbits/s speed=10.2x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:10.26 bitrate=4902.4kbits/s speed=10.2x
  
  Last message repeated 150 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:15.30 bitrate=4934.5kbits/s speed=10.2x
  
  Last message repeated 137 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:19.90 bitrate=4953.1kbits/s speed=9.91x
  
  Last message repeated 152 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:25.00 bitrate=4949.3kbits/s speed=9.97x
  
  Last message repeated 152 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:30.10 bitrate=4946.8kbits/s speed=  10x
  
  Last message repeated 152 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:35.20 bitrate=4945.0kbits/s speed=  10x
  
  Last message repeated 146 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:40.10 bitrate=4968.3kbits/s speed=9.99x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:45.23 bitrate=4960.8kbits/s speed=  10x
  
  Last message repeated 147 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:50.16 bitrate=5016.4kbits/s speed=  10x
  
  Last message repeated 152 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:00:55.26 bitrate=4970.9kbits/s speed=  10x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:00.33 bitrate=4970.6kbits/s speed=  10x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:05.46 bitrate=4997.3kbits/s speed=  10x
  
  Last message repeated 149 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:10.46 bitrate=5029.6kbits/s speed=  10x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:15.60 bitrate=5021.0kbits/s speed=  10x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:20.66 bitrate=5017.6kbits/s speed=  10x
  
  Last message repeated 154 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:25.83 bitrate=4984.3kbits/s speed=10.1x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:30.90 bitrate=4983.3kbits/s speed=10.1x
  
  Last message repeated 149 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:35.90 bitrate=4985.9kbits/s speed=10.1x
  
  Last message repeated 149 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:40.90 bitrate=4988.3kbits/s speed=  10x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:45.96 bitrate=5007.0kbits/s speed=10.1x
  
  Last message repeated 150 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:51.00 bitrate=5006.7kbits/s speed=10.1x
  
  Last message repeated 150 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:01:56.03 bitrate=5006.4kbits/s speed=10.1x
  
  Last message repeated 147 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:00.96 bitrate=4992.9kbits/s speed=  10x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:06.03 bitrate=4991.9kbits/s speed=  10x
  
  Last message repeated 149 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:11.03 bitrate=4993.5kbits/s speed=  10x
  
  Last message repeated 151 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:16.10 bitrate=4992.5kbits/s speed=  10x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:21.23 bitrate=4989.2kbits/s speed=10.1x
  
  Last message repeated 152 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:26.33 bitrate=4987.3kbits/s speed=10.1x
  
  Last message repeated 149 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:31.33 bitrate=5016.5kbits/s speed=  10x
  
  Last message repeated 153 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:36.46 bitrate=5026.2kbits/s speed=10.1x
  
  Last message repeated 148 times
  
  [mp4 @ 0000018e11422ec0] pts has no valueB time=00:02:41.43 bitrate=4988.5kbits/s speed=  10x
  
  Last message repeated 15 times
  
  frame= 4862 fps=301 q=-1.0 Lsize=   98882kB time=00:02:41.96 bitrate=5001.3kbits/s speed=  10x
  
  video:98859kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.023950%